Move strings from typescript files into helptext files
See ticket https://redmine.ixsystems.com/issues/34086 and PR https://github.com/freenas/webui/pull/1211. To solve the issue of excess spaces and have a common place for tooltips, labels, validators and other helptext related items we will be putting them into their own helptext files. The helptext files should be in a common location with a similar hierarchy to where the files that use them are located (i.e. pages/account/groups should go in helptext/account/groups.ts) to keep things logical and organized. This umbrella ticket will have subtickets for each section to cover splitting up the text from their typescript files into the helptext files.